Internal combustion engine



Feb. 22, 1938. c. H. THOMPSON INTERNAL COMBUSTION ENGINE Filed March 17, I936 3 Sheets-Sheet 1 7 nwlyr 0 MS m Y w [TIL 1871 [or /zariwflY/zampwm Feb. 22, 3938. c THOMPSON 2,109,185

INTERNAL COMBUSTION ENGINE Filed March 17, 1936 I 5 Sheets-Sheet 2 Inventor A Home}? I Feb. 22, 1938. C TH 2,109,185

INTERNAL COMBUSTION ENGINE Filed March 1'7, 1936 I 3 Sheets-Sheet 3 5/ f 7 I 7 1/ E fiy? J, 4

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% mu w 2 Patented Feb. 22, 1938 INTERNAL -COMBUSTION ENGINE Charles H. Thompson, Sacramento, Calif.

Application March 17,

2 Claims.

This invention relates to internal combustion engines and more particularly to internal combustion engines of the rotary type. 1

An object of the invention isto simplify the 5 structure of rotary internal combustion engines and at the same time to increase the power thereof to. the end that maximum power'may be obtained with minimum fuel consumption.

The invention together with its objects and advantages will be best understood from a study of. the following description taken in connection withthe accompanying drawings wherein:

Figure 1 is a sectional view through the engine.

Figure 2 isa detail elevational view showing the manner of mounting on the engine an injector cylinder.

Figure 3 is an enlarged detail sectional view through the injector cylinder and further illustrating the means for reciprocating the piston forming part of the injector. j

Figure 4 is a fragmentary plan view showing the means for reciprocating the injector piston.

Figure 5 is an elevational view taken substantially at right angles to Figure 3 and viewing the same from the left of Figure 3.

Figure 6 is a fragmentary plan view of the rim of the, rotor.

Figure 7 is an enlarged detail sectional view taken at right angles to Figure 1.

Figure 8 is a fragmentary elevational view from thedriving end or side of the rotor.

Figure 9 is a fragmentary perspective view illustrating certain details hereinafter more fully referred to.

Referring to the drawings by reference numerals it will be seen that the internal combustion engine comprises an outer band divided into a pair of complemental sections 5, 6, which at their ends are provided with lugs I through the medium 40 of which and bolts 8 the sections 5 and 6 are connected together and secured to the side members 9 of any suitable stationary supporting frame structure.

Revoluble within the confines of the outer rim is a rotor which includes a crank case in the form of a hub I!) from which radiates cylinders II. While any number of cylinders may be employed in the present instance there have been illustrated but four such cylinders.

At their outer ends the cylinders l l are integral with a rim or band l2 that has a rotative fit within the outer band.

As shown in Figure 7 the sections and 6 of the outer band and the sections of the rim 12 between 1936, Serial No. 69,392 (01. 12s 44) the cylinders H are complementarily ribbed and grooved as indicated generally at I3.

For one side of the casing l0 there is provided a cover plate l4 secured to the member l0 by bolts or the like l5.

At the center thereof the plate I4 is provided with a formation [6 from the center of which extends the main drive shaft I! that is adapted to be connected in any suitable manner with the work that is to be driven.

Shaft I1 is journalled in a suitable bearing l8 provided therefor on one of the frame members 9a that connect the aforementioned frames 9 at the ends of the latter. Bearing l8 as shown is suitably provided at l9 for a lubricant fitting and also with an oil ring 20.

Secured to the opposite end of the hub or casing l0 through the medium of bolts 2| is an annular plate 22 in which is fitted a babbitt bear-.

ing 23. At its inner end the bearing 23 is provided with a flange 24 that has an edge portion thereof clamped between the plate22 and the adjacent end of the hub or crank case in.

The reference numeral 25 indicates one end of an axle that extends through a bearing 25. and on the end of the axle 25 is a disk 21 which is accommodated within the bushing 23 as shown. Secured to this disk 21 as at 28 and disposed against the outer face of the annular plate 22 is an oil retainer plate 29. Thus in this manner the rotor is supported to rotate about the axle 25 and its disk 21 has an axis.

Disk 21 is provided with any desired number of concentrically arranged openings 30 into a selected one of which is placed'one end of an eccentric pin 3|.

Suitably connected with the free end of the pin 3| is one end of connecting rods 32 provided for the piston 33 mounted to reciprocate within the cylinders ll. Obviously the desired compression is obtained by placing the pin 3| in the proper socket or opening 30 of disk 21. It will also be apparent that as the rotor revolves pistons 33 are constrained to reciprocate within the cylinders I I and as the cylinders fire in proper sequence the rotor will be caused to revolve as is thought apparent.

Provided in the fixed outer ring section 5 is a port 34 into alinement with which and the intake port 35 provided in the rim l2 the cylinders H successively move for charging the cylinders H with fuel.

For charging purposes there is provided an injector which includes a cylinder 36 suitably mounted on the ring section 5 and adapted to be connected at one end 31 with a carbureter (not shown).

Inwardly from the end 31 cylinder 36 is provided with a guide bar 38 through which works a valve stem 39 provided for a valve 40 engageable with a seat 4| fixed within the casing 36 at the side of the guide 38 farthest remote from the end 31 of the cylinder.

A spring 42 serves to yieldably retain the valve disk 40 engaged with its seat 4 I.

Mounted for reciprocation within thecylinder 36 at the sidejof the seat 4| opposite to the guide 38 is a piston 43 which serves to draw fuel into the cylinder 36 from the carbureter and, with like may be forced for use in cleaning out the cylinders.

valve 40 open, pass the valve seat 4| to subsequently force the fuel under pressure through the 1 port 45, and through port 34 and the port 35 alined with the port 34 into the proper cylinder.

For reciprocating the piston 43 as the rotor revolves there is provided on the free end of the piston rod 46 an arm 41 formed at one end with-a hook 48.

Secured to one side edge of the rim I2 of the rotor is a continuous cam ring which at intervals has formed integrally therewith attaching brack-, ets 48 bolted or otherwise secured at 49 to the rim I2- The cam ring is corrugated to provide in alternation cam hollows 58 and cam humps 5|, and the hook 48 engages thecam ring in a manner clearly-shown in Figures 3 and 7 so that as the rotor revolves the camring so engages the hook 48 that, through the medium of the cam humps 5| and the cam hollows 50, the piston 43 will be caused to reciprocate for drawing fuel into the cylinder 36 past the valve 48 and subsequently forcing the fuel from the cylinder 36 into the successive cylinders II.

The section 6 of the stationary ring is provided with a single exhaust port 5| and an exhaust manifold 52 is suitably secured to the ring section 6 as shown in Figure" I. It will thus be seen that as each cylinder ll moves into alinement with port 5| the burnt gases will exhaust therefrom to be carried ofi by the exhaust conduit 52.

For each cylinder ll there is also provided a suitable, breather cap 53.

intervals are contact elements 55 for use as a part of the ignition system.

Also, the rim section 5 at a suitable point thereof will be provided with a spark plug hole 56 to accommodate the spark plug 51 for igniting the compressed charges in the successive cylinders.

For the casing Ill there is also provided on the rim section 5 a suitable valve controlled vent assembly 58.

Also for cleaning out the cylinders there is provided in the rim section 6 an opening 59 with which the cylinders I I are caused to; successively aline and extending from the opening 59 is a con- .duit 68 through which air under pressure or the Fonlubricating the contiguous faces of the outer fixed ring and the rim l2 through the vmedium of the oil within the casing Hi there are provided oil conduit pipes 6| that extend from the casing ID to the rim I2 and these pipes are provided with suitable valves 62 as shown.

Having thus described the invention, what-is claimed as new is: 1. A fuel injector for rotary internal combustion engines comprising an injector casingmounted on a' stationary :part of the engine, a cylinder in one end of the casing having a discharge port therein, said injector cylinder'alsohaving a longl tudinally aligned end adapted to be connected with a source of fuel supply and a piston opera tively mounted within theinjector cylinder for' drawing fuel from said supply and forcing'fuel under pressure through said discharge port,'said injector'casing having a guide member adjacent the end thereof connected with said' source of fuel supply, a valve seat in the injector casing inwardly of the guide,'a valve engageable with said seat and having a stem working through saidguide and a. spring engaged with said stem for yieldably urging said valve in engagement with said seat, said seat being disposed betweensaid system and said valve guide.

2. Means for actuating the piston of a'fuel'injector for rotary internal combustion engines comprising a rod extending from the piston, a hook member having a shank secured to the free end of said ,rod and means having wiping contact with the hook for reciprocally actuating the piston,

CHARLES H."I'HOMPSON. 

